Ac-Dc Conversion Without Reversal TRIZ Cases

A single-stage isolated converter recovers transformer leakage inductor energy through a dedicated path to the input capacitor.

A triboelectric nanogenerator circuit uses a DC-DC converter to transfer energy from temporary storage.

A segmented power supply path isolates heater voltage from control unit circuits to maintain diagnostic capability during abnormal input conditions.

A bipolar ripple cancelling converter uses a floating capacitor to generate an opposing AC voltage that neutralizes output ripple in high-power LED drivers.

A power converting device uses a controlling unit to engage a backup source via a switch when grid voltage drops below a threshold.

Out-of-phase rectifier windings on the core generate opposing magnetic fluxes that cancel imbalance currents, reducing direct current output perturbations.

A saturable inductor generates counter electromotive force to switch electronic switches off before reverse current flows.

Gated rectification isolates EMI sources by restricting switched mode DC-DC conversion to high-voltage AC intervals.

An electret coupled to an alternating current power bus generates voltage from the electric field, converting it via a rectifier to supply powered devices.

A switching means redirects reverse current from a primary winding to a secondary load outlet for energy storage.

Air core transformer minimizes parasitic coupling capacitance and reduces component count while enabling bipolar voltage operation for efficient switching.

A digital controller estimates phase currents and effective resistance to equalize thermal stress across multiphase DC-DC converter phases.

A current estimating device applies gain correction coefficients to voltage detection results from a power converter circuit.

A rectified voltage ratio signal detects inverter phase failures without complex filtering hardware.

Depletion-mode FETs and shunt regulators stabilize current across 7V to 1000V inputs, eliminating narrow range limitations.

Separating the feedback signal path from the power coil eliminates interference and stabilizes high-power transfer.

A light-load detection circuit compares switching voltage with a synchronous threshold to control the rectifier transistor.

A converter uses wide bandgap semiconductors for specific switching components to lower energy dissipation.

Two independent DC apparatuses in a high-voltage unit reduce common-mode voltage fluctuations and improve resilience against connection failures.

Synchronizing circuitry coordinates master and slave controllers through shared communication interfaces to eliminate electromagnetic interference and noise.

A multilevel converter uses hybrid full-bridge cells to reduce component count while maintaining fault current limitation capabilities.

A circuit arrangement uses a controllable auxiliary switch to remove residual charge carriers from an IGBT via magnetic coupling.

A power supply module integrates horizontal windings directly onto the system board to reduce height and improve current uniformity.

Parallel converter and bulk capacitor store and discharge energy to regulate bus voltage, reducing size while maintaining stability.

A controller stops selected converters in series-connected power converter cells while inverters continue operating using DC link capacitors.

Dynamic switching control replaces static Zener diodes to eliminate continuous power wastage and reduce capacitive reactance losses.

Control unit manages high-voltage polarity switching using correction values to prevent photosensitive drum potential fluctuations during rapid conveyance.

A magnetic fluid storage unit discharges fluid through a pipe to induce electromotive force in an induction coil.

Commutating means redirects backflow electric current to reduce recovery losses while protecting against component failures.

Segmented LED driver circuits generate multiple control signals to adjust brightness, overcoming the limitations of conventional dimming controllers.

A multi-phase power factor correction system adjusts time advances across phases to synchronize AC line signals.

A filter circuit uses a series diode clamping structure to increase voltage across components and prevent negative voltage generation on the freewheeling capacitor.

A compact power supply module integrates AC-DC and DC-DC converters with a managed backup battery inside one housing.

A coreless PCB transformer transfers RF power via electromagnetic induction to isolate meter circuitry from magnetic tampering.

Segmenting power conversion stages reduces voltage drop in long output cords while maintaining high current delivery.

A converter device identifies open phase locations on delta or wye connections using dedicated detection units and current analysis.

A control circuit with a preload and damping section tunes the triac's resonant frequency, preventing oscillation and ensuring stable dimming operation.

Replacing rigid PCBs with metallic conductive films between stacked rectifier dies reduces conduction path length and heat accumulation.

Folded connecting rails conduct opposite currents to cancel magnetic flux changes, reducing voltage peaks in high-power converters.

Dual impedance windings in a saturable core transformer enable reliable thermostat operation while minimizing power dissipation during motor cycling.

A power converter uses a photocoupler to transmit outage signals via an auxiliary winding.

A control circuit uses diodes and transistors to direct current flow in one direction between switching device terminals.

Modular thyristor rectifier circuits operate one bridge in regulating mode while others enter bypass mode, reducing copper losses and improving power factor.

Instantaneous AC feedback replaces DC signals to eliminate THD and torque ripple in varying loads.

Dynamic transformer winding switching manages heat generation at high currents while maintaining efficient energy harvesting at low line currents.

Segmenting boost inductors into two rails resolves efficiency loss at widely separated AC voltages by enabling phase-shifted operation.

A controller discharges input capacitors through a power switch using periodic PWM pulses.

A power conversion apparatus merges rectification and DC-DC stages into a single circuit to achieve high efficiency.

Phase-angle control of switching elements reduces stand-by losses and limits inrush current peaks during startup.

Three-phase LED lighting power supply uses full-wave rectification and single-phasing to create a pseudo LC filter.